LOCTITE THREAD LOCKER (100% ORIGINAL) (577 ~ 50ML)

Reference: GLT-57750

Condition: New

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Loctite 577 is a medium-strength thread sealant specifically designed for locking and sealing metal pipes and fittings. While the blue (243) and red (263/272) variants are "threadlockers" for bolts, 577 is the go-to choice for preventing leaks in plumbing, hydraulic, and pneumatic systems.

The 50ml bottle is the standard professional size, ideal for maintenance and repair tasks.

Key Specifications & Features

Purpose: Sealing and locking metal pipes and threaded fittings.
Strength: Medium (removable with standard hand tools).
Color: Yellow (paste/liquid).
Thread Type: Works on both straight and tapered threads.
Temperature Range: $-55$ °C to $+150$ °C.
Pressure Resistance: Can withstand pressures up to 200 bar when fully cured.
Certifications: NSF (P1) registered for food processing areas; DVGW and WRAS approved for gas and water.
Oil Tolerance: Improved formula cures even on surfaces with light oil contamination.

How to Verify "100% Original"

Authenticity is critical for high-pressure sealants. Look for these markers on a genuine 50ml bottle:

Micro-Engraved Bottle: Genuine Henkel bottles feature micro-textured shoulders with the Loctite logo embossed directly into the plastic.
QR Code Verification: Scannable QR codes on the label link to Henkel's authentication portal. Each code is unique; if two bottles have identical QR patterns, they are likely fake.
The Anaerobic "Air" Gap: The 50ml bottle will only be about half-full of liquid. This air space is necessary to keep the product from hardening inside the bottle.
UV Fluorescence: The liquid glows under UV (blacklight). This allows for easy inspection after assembly to ensure the sealant was applied correctly.